00617naa#a2200181#i#450# EN\\bibl\109521 20260305162240.4 2782-4586 20260131b2026####ek#y0engy0150####ca RU Choosing a portfolio investment strategy in the securities market under conditions of high volatility Journal article Moscow ITBO University 2026 5 с. Journal article local Вклады капитала в ценные бумаги. 336.767 Yakovleva Nina Valer'evna Egorova Zlata Romanovna jomeam.ru